And the star has admitted she has been left feeling ''sore'' from her intense training.

Speaking about her latest venture, she said: ''It's for a role. I'm getting ready to play a woman in a movie called 'The Doorman'. She's an ex-Marine and she's a warrior. I'm excited. I'm training. I'm sore.''

Meanwhile, Katie has revealed she plans quit acting soon to ''just direct'' in the future.

Speaking previously about her career plans, she said: ''This business is so unstable, and you never really know where you're going to be.